Steam boiler



' Aug. 24 1926.

ii I 3 Sheets-Sheet 1 Filed F eb. 9', 1924 w. A. HOLDINGHAUSEN STEAM BOILER f 'i 1 Zlwuenloc WiZZa'amAJYaZdzbgfiaajm/ Patented Aug. 24, 1926.

UNITED STATES PATENT OFFICE.

WILLIAM A. HOLDINGHAUSEN, OF CLOVIS, NEW MEXICO.

STEAM BorLEn.

Application filed February 9. 1924. serial No. 691,717.

The object of this invention isto provide.

an efiicient steam boiler especially adapted for use upon motor vehicles. The invention seeks to provide a boiler which will occupy very little room and which will be of such construction that the water therein will i be quickly converted into steam. The invention also provides a boiler of sectional type in which a broken or damaged section.

tion provides means for removing sediment and provides simple means for carrying off the smoke and other products of combustion. A casing for the boiler is also provided which will be of such construction that loose or open joints are eliminated and the heat tubes so as to economically convert the water into steam. The invention is illus trated in the accompanying drawings and will be hereinafter fully set forth.-

In the drawings: Figure 1 is a side elevation, partly broken away, of my improved boiler showing the same installed in the hood of an automobile;

Fig. 2' is a transverse section on the line.

22 of Fig. 1;

Fig. 3 is a top plan view with the cover h i 16 and around the water tubes so that the removed; and v Fig. 4 is a detail section on the line4-1 of Fig. 2.

Incarrying out my invention, I provide a casing whiehmay be supported in any convenient manner upon automobile and arranged under. the hood 1 of the same. This casing consists of base or supporting members 2 constructed in their upper edgeswith'sockets, as indicated at3,

to receive the reduced tongues or tenons 4 upon the lower edges of sideplates 5. The

casing also includesfront and back plates 6, the side edges "ofwhich are recessed, as

1 shown at 7, to accommodate the edgesof the side plates and asbestos or other packing, as

indicated at 8, maybe employed to close the joints between the sideplates and the front and back plates and also to seat the tenons 1 in the sockets 3. A cover 9 is also provided, said cover having depending flanges 10 at all its sides which fit closely against the outer faces of the side and backand front' plates, thereby holding the upper the frame of the 1 13 connecting the lower ends of the said side tubular members and an upper tubular member or header 14 which also connects and establishes communication between the said side tubular members, the upper header 14L being arranged obliquely or inclined to the horizontal, as clearly shown in Fig. 2.

Extending'between the headers 13 and 1. 1 are water tubes15 which are open at their upper. and lower ends and establish communication between the said headers, as will be confined to play about the water burner of any preferred type is disposed below the several sections to play directly upon the lower headers 13 and create a circulation of hot air through the several fines water supply pipe 17, which is connected at intervals by branches 18 with the respective sidetubes 11, a cut-off valve 19 being provided in each branch between the supply pipe-17 and theorising, and the branch ineluding a union coupling 20 so that, if repairsbe needed, any particular secilon may be cutout be merely closing the proper one.

off valve 19 and disengaging Lie coupling 20, as will be readily understood. At the opposite side of the casing is a mud drum 21 having connection with the several sections through pipes 22 and with blow-off valves 23. The drum, as shown most clearly in Fig. 2, is located belowthe series of sections constituting the main body of the boiler so that the water will naturally flow into the drum. The

provided at both ends boiler, however, is subj ected to the influence of accessible and so that any leaks may be readily detected and repaired.

The pipes 18 are of copper tubing and relatively small in diameter and they are coiled, as shown at 51, to accommodate eX- pansion, contraction and movement in the sections due to road use of the car.

The several tubes 12 extend above the headers 14, as shown most clearly in Fig. 2, and pipes 2-l extend from the upper ends of these tubes across thecasing below the top of the same to a steam dome or drum .25 which is supported above the sidetubes 11, the drum being disposed below the pipes 24, as shown. I drum, small drip tubes ornozzles 26 depend into the side tubes 11 at the ends of the boiler so that any water of condensation which may tend to accumulate in the drum will be returned to the boiler sections to be again heated and vaporized. While a drip tube 26 may be provided for each section of the boiler, ordinarily they will be provided at the end sections only in order to permit maximum flexibility in the boiler. Extend ing inwardly from the drum is a short pipe 2'? connecting the said steam drum with a header or drum 28 which is disposed parallel with the steam drum above the several full length of the boiler.

boiler sections and extending preferably the This drum 28 forms one member of a superheater, being connected with a second similar parallel collecting drum 29 by a plurality of 'U-shaped superheating pipes .30 disposed between the boiler sections and extending downwardly to the plane of the several lower headers 13.

From the rear end of the collecting drum 29, a takeoff pipe 31 passes to the throttle v of the engine whereby the steam will be caused to drive the engine and the speed of thelatter be controlled. While only two superheater' pipes '30 are shown, it will be understood that they may be provided in such .numbers that one of them will be arranged between each two boiler sections. It will be noted, upon reference to Fig. 2, that theturns in the superheater pipes are as nearly as possible right angles so that the steam will be changed in direction as often as possible and the highest efficiency of the superheater obtained. The drums 2'8 and From the under side of the 29 are suspended from the hanger clamps 52.

Supported by the back plate of the casing is a smoke conduit .32 which may be carried under the body of the vehicle to discharge the smoke and products of combustion'in rear thereof in a manner similar to that in which the exhaust from internal combustion engines is now commonly discharged. The upperend of the smoke conduit 32 opens into a collecting chamber 33 disposed at the back of the casing and preferably of a cup or trough-like formation having its open upper side substantially" equal to the width of the boiler. It will be pipes 24 by understood that the motion of the traveling vehicle will create a strong draft through this collecting chamber and smoke conduit which will serve to effectually withdraw all waste products of combustion so that the deposit of soot and other foreign'matter upon any of the water tubes or in the fire lines will be avoided and the boiler kept in efficient condition with very little attention.

As has been said, a burner is located below the several headers 13. This burner may be of any preferred type and is not illustrated in the accompanying drawings inasmuch as the partlcular form of burner constitutes no part of my present invention. The heat given oh"? by the burner will rise through the several fire tubes 16 and through the spaces between the several water tubes 15 so that it will play upon the several columns of water at thecenters thereof through the fire flues and also upon the outside thereof through the water tubes. As a result, the water will be very quickly raised in temperature and steam rapidly formed. As the water is heated, it, of course, expands and it may rise through the several. tubes to the header 14. Inasmuch as this header is disposed obliquely or at an angle to the horizontal, the water is not apt to rise in all the tubes so as to enter theheader 14 through the entire length thereof and, consequently, there will always be a space .atthe' higher end of the said header and at the upper end of. the side tube 12 free of water and through which the steam.may readily pass to the steam dome and thence to the superheaters. .As' the water rises in the" tube 15 next the .side tube 1 1, for instance, it will enter the header 1% and, if it continuesto expand and increase in height, it will over-. 'flowinto the adjacent water tube 15 before to the upper end thereof over the tube 12..

where the water will drop from the steam and return to the water level while the steam will pass on to the steam dome. A circulation of water from the tubes 11 and 12 to the tubes 15 is thus set up so that the water rotates violently and the formation of hot spots is avoided. It will be noted that unions 53 are provided in the pipes 24. lVhen removal of a boiler section becomes necessary, the unions 20, and 53 of the section are disconnected and the section may then be easily withdrawn. The structure is compact, may be easily installed and is especially adapted for use upon motor vehicles.

Having thus described the invention, I claim:

1. A steam boiler comprising a plurality of independent sections each consisting of a lower header, an upper header inclined to the horizontal from one end of the section to the other end thereof, vertical water tubes connecting the ends of the headers, intermediate vertical water tubes connecting the headers between the ends thereof, fire fines extending through the last-men tioned water tubes and the headers, a steam drum disposed above the lower ends of the upper headers, independent connections between the drum and the higher ends of said headers, and superheaters connected with the drum and suspended vertically betweenthe several sections.

2. A steam boiler comprising a plurality of independent sections each consisting of a lower header, an upper header inclined to the horizontal from one end of the section to the other end thereof, vertical water tubes connecting the ends of the headers, intermediate water tubes connecting the headers between the first-mentioned water tubes, fire flue-s ext-ending through the lastmentioned water tubes and the headers, a steam drum disposed above the lower ends of the upper headers, connections between the drum and the higher ends of said head ers, superheaters connected with the drum and disposed between the several sections,

and drip members depending from the drum into the lower ends of the upper headers.

3. A steam boiler comprising a plurality of independent sections arranged side by side and each consisting of a lower header, an upper header inclined to the horizontal from end to end of the section, vertical water tubes connecting the ends of the headers, intermediate water tubes connecting the headers between the ends thereof, fire fines passing through the last-mentioned water tubes and the headers, a steam drum disposed above the lower ends of the upper headers, connections between the drum and the higher ends of said headers, a second drum disposed over the several sections, connections between said second drum and the steam drum, a collecting drum also disposed over the several sections, U-shaped superheater pipes arranged between the several adjacent sections and forming communication between the collecting drum and the said second drum, means for carrying off steam from the collecting drum, and means for independently supplying water to the several sections.

l. A steam boiler comprising a plurality of independent sections arranged side by side and each consisting of upper and lower headers, water tubes connecting the ends of the headers, intermediate water tubes connecting the headers between the ends thereof, fire flues passing through the intermediate water tubes and through the headers, U shaped superheater pipes disposed vertically between adjacent sections, connections between the upper headers of the several sections and one end of the respective superheater pipes, and means above the sections connected with the other ends of the superheater pipes to deliver the steam at the pointof use.

In testimony whereof I aflix my signa ture.

WILLIAM A. HOLDINGHAUSEN. [L. s.] 

